package field_method14;

public class CircleTest {
    public static void main(String[] args) {
        Circle circle = new Circle();
        System.out.println("初始半径: " + circle.getRadius());
        System.out.println("初始面积: " + circle.findArea());
        circle.setRadius(12);
        System.out.println("新半径: " + circle.getRadius());
        System.out.println("新面积: " + circle.findArea());
    }
}
